Reign vs Rockstar

Caffeine, sugar, calories and community ratings side by side. We're using Reign Cherry Limeade and Rockstar Energy Original as the stand-ins for each line.

Reign Cherry Limeade has 140 mg more caffeine (300 mg vs 160 mg), so Rockstar Energy Original is the gentler of the two.
Reign Cherry Limeade has no sugar at all; Rockstar Energy Original has 63 g. That is the single biggest difference between them.
Calories land at 10 for Reign Cherry Limeade and 260 for Rockstar Energy Original.

	Reign Cherry Limeade Reign Check Price on Amazon	Rockstar Energy Original Rockstar Check Prices
Rating	Not yet rated	Not yet rated
Type	performance	lifestyle
Caffeine	300 mg	160 mg
Can size	16 fl oz	16 fl oz
Caffeine / fl oz	18.8 mg	10 mg
Sugar	0 g	63 g
Calories	10	260
Sugar-free	Yes	No

Reign Cherry Limeade ingredients

Carbonated Water
Citric Acid
Sodium Citrate
L-Leucine
Natural Flavors
Caffeine
L-Isoleucine
L-Valine
Sucralose
Sodium Benzoate (Preservative)
Potassium Citrate
Potassium Sorbate (Preservative)
Acesulfame Potassium
Niacinamide (Vit. B3)
Magnesium Lactate
Coenzyme Q-10
Pyridoxine Hydrochloride (Vit. B6)
Cyanocobalamin (Vit. B12)

Full Reign Cherry Limeade page →

Rockstar Energy Original ingredients

Carbonated Water
Sugar
Glucose Syrup
Citric Acid
Taurine
Natural and Artificial Flavor
Sodium Citrate
Caffeine
Caramel Color
Glucuronolactone
Sodium Benzoate (Preservative)
Potassium Sorbate (Preservative)
Inositol
L-Carnitine
Guarana Seed Extract
Niacinamide (Vitamin B3)
Calcium Pantothenate (Vitamin B5)
Milk Thistle Extract
Panax Ginseng Root Extract
Yellow 5
Pyridoxine Hydrochloride (Vitamin B6)
Riboflavin (Vitamin B2)
Cyanocobalamin (Vitamin B12)

Full Rockstar Energy Original page →

Common questions

Does Reign or Rockstar have more caffeine?: Reign. Reign Cherry Limeade has 300mg of caffeine per can versus 160mg in Rockstar Energy Original, a difference of 140mg.
Which is stronger per ounce, Reign or Rockstar?: Reign. Reign Cherry Limeade is 18.8mg of caffeine per fl oz (300mg in 16 fl oz), against 10mg for Rockstar Energy Original (160mg in 16 fl oz).
Does Reign or Rockstar have more sugar?: Rockstar. Rockstar Energy Original has 63g of sugar per can, while Reign Cherry Limeade has 0g.
Which has fewer calories, Reign or Rockstar?: Reign. Reign Cherry Limeade has 10 calories per can versus 260 in Rockstar Energy Original.
What's the difference between Reign and Rockstar?: Comparing Reign Cherry Limeade and Rockstar Energy Original: caffeine is 300mg versus 160mg, sugar is 0g versus 63g, calories are 10 versus 260. Full ingredient lists for both are on this page.

Browse every flavor: Reign · Rockstar · or build your own comparison.

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Reign Cherry Limeade

Reign

Check Price on Amazon

Rockstar Energy Original

Rockstar

Check Prices

Rating

Not yet rated

Type

performance

lifestyle

Caffeine

300 mg

160 mg

Can size

16 fl oz

Caffeine / fl oz

18.8 mg

10 mg

Sugar

0 g

63 g

Calories

260

Sugar-free

Yes

Reign Cherry Limeade ingredients

Carbonated Water

Citric Acid

Sodium Citrate

L-Leucine

Natural Flavors

Caffeine

L-Isoleucine

L-Valine

Sucralose

Sodium Benzoate (Preservative)

Potassium Citrate

Potassium Sorbate (Preservative)

Acesulfame Potassium

Niacinamide (Vit. B3)

Magnesium Lactate

Coenzyme Q-10

Pyridoxine Hydrochloride (Vit. B6)

Cyanocobalamin (Vit. B12)

Full Reign Cherry Limeade page →

Rockstar Energy Original ingredients

Carbonated Water

Sugar

Glucose Syrup

Citric Acid

Taurine

Natural and Artificial Flavor

Sodium Citrate

Caffeine

Caramel Color

Glucuronolactone

Sodium Benzoate (Preservative)

Potassium Sorbate (Preservative)

Inositol

L-Carnitine

Guarana Seed Extract

Niacinamide (Vitamin B3)

Calcium Pantothenate (Vitamin B5)

Milk Thistle Extract

Panax Ginseng Root Extract

Yellow 5

Pyridoxine Hydrochloride (Vitamin B6)

Riboflavin (Vitamin B2)

Cyanocobalamin (Vitamin B12)

Full Rockstar Energy Original page →

Common questions

Does Reign or Rockstar have more caffeine?

Reign. Reign Cherry Limeade has 300mg of caffeine per can versus 160mg in Rockstar Energy Original, a difference of 140mg.

Which is stronger per ounce, Reign or Rockstar?

Reign. Reign Cherry Limeade is 18.8mg of caffeine per fl oz (300mg in 16 fl oz), against 10mg for Rockstar Energy Original (160mg in 16 fl oz).

Does Reign or Rockstar have more sugar?

Rockstar. Rockstar Energy Original has 63g of sugar per can, while Reign Cherry Limeade has 0g.

Which has fewer calories, Reign or Rockstar?

Reign. Reign Cherry Limeade has 10 calories per can versus 260 in Rockstar Energy Original.

What's the difference between Reign and Rockstar?

Comparing Reign Cherry Limeade and Rockstar Energy Original: caffeine is 300mg versus 160mg, sugar is 0g versus 63g, calories are 10 versus 260. Full ingredient lists for both are on this page.